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Video: Puas yog LB agar xaiv?
![Video: Puas yog LB agar xaiv? Video: Puas yog LB agar xaiv?](https://i.ytimg.com/vi/lbwQSMxbwM8/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Luria Bertani (kuv. LB ) agar yog ib yam khoom noj muaj haus agar rau txoj kev loj hlob tas li ntawm cov kab mob thiab tsis tshwj xeeb tshaj yog haum rau ib hom microbe tshwj xeeb. Phenylethyl cawv agar (PEA) yog xaiv rau hom Staphylococcus thiab tiv thaiv kab mob Gram-negative.
Yog li ntawd, puas yog ntshav agar xaiv?
Ntshav agar yog qhov nruab nrab sib txawv uas sib txawv ntawm cov kab mob los ntawm lawv lub peev xwm los zom cov xim liab ntshav hlwb. Lub peev xwm los rhuav tshem cov cell yuav ua rau muaj kev hloov pauv xim ntawm cov qov av . Qee qhov xov xwm yog ob qho sib txawv thiab xaiv.
Kuj Paub, LB sawv rau dab tsi hauv LB agar? Lysogeny kua zaub
Tom qab ntawd, ib tus kuj tseem tuaj yeem nug, xaiv agar yog dab tsi?
Xaiv xov xwm tso cai qee yam ntawm cov kab mob kom loj hlob, thiab txwv kev loj hlob ntawm lwm yam kab mob. Tellurite agar , yog li ntawd, tau siv los xaiv rau cov kab mob Gram-positive, thiab cov as-ham agar ntxiv nrog penicillin tuaj yeem siv los xaiv rau cov kab mob Gram- tsis zoo.
LB agar daim hlau yog dab tsi?
Luria kua zaub ( LB ) yog cov khoom noj muaj txiaj ntsig zoo tshaj plaws uas siv los coj kab mob hauv chav kuaj. Ntxiv ntawm agar rau LB ua rau tsim cov gel uas cov kab mob tuaj yeem loj hlob tau, vim tias lawv tsis tuaj yeem zom cov agar tab sis tuaj yeem sau cov khoom noj khoom haus los ntawm LB tsis pub dhau
Pom zoo:
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MacConkey Agar. Qhov nruab nrab no yog ob qho tib si xaiv thiab sib txawv. Cov khoom xyaw xaiv yog ntsev ntsev thiab zas xim, siv lead ua violet uas tiv thaiv kev loj hlob ntawm cov kab mob Gram-positive. Qhov sib txawv ntawm cov khoom yog lactose
Puas tuaj yeem xaiv qhov kev xaiv cog tiag tiag hauv ib hnub?
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"Cov hniav nyob rau hauv ib hnub" txwv tsis pub hu ua "tag nrho-on-4" yog cov txheej txheem uas cov pej xeem tau nthuav tawm los ntawm kev tshaj tawm cov tuam txhab xws li "Clear Choice". “Cov hniav nyob rau ib hnub” txhais tau tias tus neeg mob cov hniav raug rho tawm, muab tso rau hauv thiab cov hniav uas tsis tawm tuaj tau xa tag nrho hauv ib hnub
Puas yog nws txhaum cai los xaiv California poppies?
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Ntau tus neeg hauv California tau hnov tias nws tsis raug cai xaiv Poppies hauv lub xeev. Raws li txoj cai no, nws tuaj yeem ua txhaum cai los xaiv cov poppies, yog tias lawv nyob hauv thaj av tsis yog tus neeg xaiv. Txawm li cas los xij, yog tias tus neeg nqa khoom yog tus tswv av, lossis tau tso cai khaws cov paj noob hlis los ntawm tus tswv av, tom qab ntawd lawv tuaj yeem khaws cov paj
Puas yog txoj kev lim ntshav tau ua haujlwm xaiv?
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Kev lim ntshav tau ua haujlwm raws li qhov nqus dej tau yooj yim vim nws tso cai rau kev txav ntawm cov molecules me me zoo li qab zib los ntawm nws tab sis nws tsis tso cai txav ntawm cov molecules loj xws li hmoov txhuv nplej siab
Vim li cas eosin methylene xiav agar xaiv thiab sib txawv?
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Eosin Methylene Blue (los yog EMB) Agar yog ib qho Kev Xaiv & Sib txawv nruab nrab. Kev xaiv thiab qhov sib txawv sib txawv yog vim cov xim Eosin Y thiab Methylene Blue, thiab suab thaj lactose thiab sucrose hauv nruab nrab. Nws yog Selective vim nws txhawb qee cov kab mob kom loj hlob thaum inhibiting lwm tus